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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Forest Grove, Pennsylvania, is another cold winter month, with an average temperature varying between 23.4°F (-4.8°C) and 35.6°F (2°C). Forest Grove's coldest temperatures are experienced in January, with average high temperatures of 35.6°F (2°C) and lows of 23.4°F (-4.8°C). Weather in January »
Weather in February
February, the last month of the winter in Forest Grove, is also an icy month, with an average temperature varying between 25.2°F (-3.8°C) and 39°F (3.9°C). February reports an average high-temperature of a still icy 39°F (3.9°C), slightly varied from January's 35.6°F (2°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Forest Grove, Pennsylvania, with an average temperature ranging between max 47.8°F (8.8°C) and min 32.5°F (0.3°C). With the transition into March, Forest Grove experiences a subtle uplift in average high-temperatures, adjusting from an icy 39°F (3.9°C) in February to a chilly 47.8°F (8.8°C). Weather in March »
Weather in April
April in Forest Grove, Pennsylvania, is a moderate spring month, with an average temperature ranging between min 42.6°F (5.9°C) and max 60.3°F (15.7°C). April's onset witnesses a shift in the average high-temperature, moving from a chilly 47.8°F (8.8°C) in March to a mild 60.3°F (15.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Forest Grove, Pennsylvania, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 70.9°F (21.6°C). May witnesses an increase in the average high-temperature, moving from a mild 60.3°F (15.7°C) in April to an agreeable 70.9°F (21.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Forest Grove, Pennsylvania, with an average temperature ranging between max 79.3°F (26.3°C) and min 60.4°F (15.8°C). A soft shift in the average high-temperature is noticeable in June, transitioning from an agreeable 70.9°F (21.6°C) in May to a warm 79.3°F (26.3°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Forest Grove, Pennsylvania, with an average temperature fluctuating between 84.9°F (29.4°C) and 66.7°F (19.3°C). The temperatures reach their highest averages in July, with highs of 84.9°F (29.4°C) and lows of 66.7°F (19.3°C). July's average heat index is computed to be a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Forest Grove, is also a moderately hot month, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 64.9°F (18.3°C). The advent of August brings an average high-temperature of a still moderately hot 82.8°F (28.2°C), almost identical to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Forest Grove, Pennsylvania, with temperature in the range of an average low of 57.9°F (14.4°C) and an average high of 76.1°F (24.5°C). In Forest Grove, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's 82.8°F (28.2°C) to a still moderately hot 76.1°F (24.5°C). Weather in September »
Weather in October
October, like September, in Forest Grove, Pennsylvania, is another comfortable autumn month, with an average temperature fluctuating between 48.2°F (9°C) and 63.5°F (17.5°C). The commencement of October involves a temperature shift, with the average high-temperature dropping from a warm 76.1°F (24.5°C) in September to an enjoyable 63.5°F (17.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Forest Grove, Pennsylvania, with an average temperature fluctuating between 37.4°F (3°C) and 51.4°F (10.8°C). Forest Grove's weather changes with the onset of November, slightly falling from an enjoyable 63.5°F (17.5°C) in October to a cool 51.4°F (10.8°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Forest Grove, Pennsylvania, with an average temperature fluctuating between 41.9°F (5.5°C) and 30.9°F (-0.6°C). Onset of December comes with a temperature decline, the average high falling from a cool 51.4°F (10.8°C) in November to an icy 41.9°F (5.5°C). Weather in December »
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
The coldest temperatures in Forest Grove occur during January, when averages reach a peak of 35.6°F (2°C) and a low of 23.4°F (-4.8°C).
How many days does it rain?
In Forest Grove, during the entire year, the rain falls for 158.6 days and collects up to 28.31" (719mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How many days does it snow?
In Forest Grove, during the entire year, snow falls for 24.6 days and aggregates up to 10.24" (260mm) of snow.
What are the months with the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month?
The months with the highest humidity are February and October, with an average relative humidity of 79%.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.7h of sunshine.
What is the snowiest month?
March is the month with the most snowfall. Snow falls for 4.6 days and accumulates 2.76" (70mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the least humid month?
With an average relative humidity of 73%, April is the least humid month.
What are the months with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When it does not snow in Forest Grove?
June through September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What is the warmest month in Forest Grove?
With an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 66.7°F (19.3°C), July is the warmest month.
What is the wettest month?
The month with the most rainfall is July, when the rain falls for 17.3 days and typically aggregates up to 2.87" (73mm) of precipitation.
What month has the most sunshine?
With an average of 10.6h of sunshine, July has the most sunshine of the year.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.65" (42mm) of precipitation.
What is the month with the shortest days in Forest Grove?
With an average of 9h and 24min of daylight, December has the shortest days of the year in Forest Grove.
Average temperature
Forest Grove, PA
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.6°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Forest Grove, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Forest Grove, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
8mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Forest Grove, PA
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Forest Grove, PA
- Average rainfall in January:
1.85" - Average rainfall in February:
2.01" - Average rainfall in March:
2.48" - Average rainfall in April:
2.24" - Average rainfall in May:
2.72" - Average rainfall in June:
2.36"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.8" - Average rainfall in September:
1.65" - Average rainfall in October:
2.44" - Average rainfall in November:
2.13" - Average rainfall in December:
2.76"
The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days
Forest Grove, PA
- Average rainfall days in January:
8.7 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
15.1 days - Average rainfall days in September:
12 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).
Average snowfall
Forest Grove, PA
- Average snowfall in January:
2.13" - Average snowfall in February:
2.44" - Average snowfall in March:
2.76" - Average snowfall in April:
0.2" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Forest Grove, PA
- Average snowfall days in January:
7.9 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
4.6 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
4.1 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Forest Grove, PA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Forest Grove, PA
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
12.1 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
15.8 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11 days).
Average UV index
Forest Grove, PA
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Forest Grove, PA
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Forest Grove, PA
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Forest Grove, Pennsylvania, USA
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